Context:
I have a missile silo set to force-fire at the enemy base, with caretakers guarding the silo. Leading up to the bug, my missile silo was under attack and I queued up a few repair commands on caretakers, a tactical nuke inside the silo, and the silo itself. The tac-nuke was at half health so I rushed to launch it at the enemy. The tac-nuke looked like it was invisible or under construction, but it launched anyway(I heard the launch sound). I ordered an area repair and queued more repair orders, then this happened.
The Bug itself:
A few caretakers that are guarding a missile silo decide to repair something out-of-bounds, roughly one map-width to the left, and two and a half map-heights up.
[Spoiler]Close up of one caretaker.
[Spoiler]close up of the silo.
[Spoiler] link to save game file